Neked nincs googled? Csak, akkor ha hulyesegekre kell keresni? Eleg csak poliovakcinara keresned. De adok linkeket. Olvasd el.
polio: https://www.cdc.gov/polio/what-is-polio/polio-us.html
basic flu: https://www.cdc.gov/flu/vaccines-work/effectiveness-studies.htm
hepa: https://www.who.int/news-room/fact-sheets/detail/hepatitis-b https://www.cdc.gov/vaccines/pubs/pinkbook/hepb.html
tbc: https://vk.ovg.ox.ac.uk/vk/bcg-vaccine
rubeola: https://www.cdc.gov/vaccines/vpd/mmr/public/index.html